Hadron Loki AAP-01 Hop Unit - Silver

Upgrade your AAP-01 with the Hadron Loki Hop Unit in Silver, a precision CNC alloy upgrade designed for players who demand repeatable hop performance and straightforward installation.

• One-piece CNC alloy outer body: Robust, tightly machined housing that delivers total precision and durability under high use.
• Integrated drilling guide: Built-in guide inside the outer body to align and install into your chosen AAP upper; includes the correct size drill bit to simplify setup.
• Silver finish: Clean, high-precision machining with a durable silver exterior for a consistent look and fit.
• Loki locking plate: Metal laser-cut retaining device that prevents rotation or self-adjustment of the TDC screw, supporting stable performance up to 35 rounds per second.
• Loki RNT Nub: Recessed nub technology based on the H-Arm V2 profile; mounted from the bottom for enhanced stability during both light and heavy use.
• GBB compatibility & alignment: Inner barrel aligned by the GBB bucking and secured by two nylon-tipped grub screws (avoid overtightening).
• Rear-loading assembly: Barrel and bucking are inserted from the rear after you drill the TDC hole into the upper.
• Proven compatibility: Tested across multiple carbine kits and buckings, including TTI, SRU Vector, and AA Mamba, to ensure reliable fit across configurations.
• Comprehensive kit contents: Includes Loki outer body, Loki upper plate, Loki locking plate, Loki RNT Nub, 2 x countersunk screws, 2 x nylon-tipped grub screws, 1 x 5mm TDC grub screw, 1 x 6mm TDC grub screw, 1 x 2.5mm drill bit, and Allen key for installation.
• Installation guidance: To drill the TDC hole, assemble the upper and bolt in the empty hop unit as per the included guidance and drill through; a drill press is recommended for accuracy, and always check for debris before assembly.

The Loki AAP-01 Hop Unit is designed to deliver consistent hop performance on the AAP-01 platform, enabling precise shot placement and reliable cycling at higher rates of fire. The integrated drilling guide removes guesswork during installation, while the Loki locking plate and RNT nub work together to minimize rotation and wobble, preserving stable hop behavior under heavy use. With tested compatibility across popular buckings and carbine kits, you can expect dependable feeds, reduced misfeeds, and predictable hop response after upgrading. The included hardware and drill bit simplify setup, so you can complete the upgrade with no extra purchases. This makes it an ideal choice for AAP-01 enthusiasts upgrading from stock or builders pursuing a repeatable, serviceable hop solution in a compact platform.